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HomeMy WebLinkAboutCity of Diamond Bar-City Hall Re-Roof-Rehabilitation projectDEPARTMENT OF PUBLIC WORKS CITY OF DIAMOND BAR CALIFORNIA CONTRACT DOCUMENTS FOR CITY HALL RE-ROOF/REHABILITATION PROJECT All Questions Regarding This Project Are to be Submitted in Planet Bids All Bid Documents Are to be Submitted in Planet Bids Mr. Jason Williams Maintenance Supervisor City of Diamond Bar (909) 839-7059 Jwilliams@DiamondBarCA.Gov November 17, 2023 BIDDER'S EXAMINATION OF SITE: Each bidder shall examine carefully the site of the proposed work and the contract documents therefore. It will be assumed that the bidder has investigated and is satisfied as to the conditions to be encountered as to the character, quality, and quantity of materials to be furnished, and as to the requirements of the contract, specifications and drawings. The name of the individual who examined the site of the work and the date of such examination shall be stated in the proposal. By submitting a bid, the bidder will be held to have personally examined the site and the drawings, to have carefully read the specifications, and to have satisfied himself as to his ability to meet all the difficulties attending the execution of the proposed contract before the delivery of his proposal, and agrees that if he is awarded the contract, he will make no claim against the City of Diamond Bar based on ignorance or misunderstanding of the contract provisions. Also, per Public Contract Code section 3400(c) (2) the specified replacement roofing material type and manufacturer is required “in order to match other products in use” on the particular project or improvement. INSURANCE:Contractor shall not commence work under this Agreement until it has obtained all insurance required hereunder in a company or companies acceptable to City nor shall the Contractor allow any sub-contractor to commence work on his sub-contract until all insurance required of the sub-contractor has been obtained. The Contractor shall take out and maintain at all times during the life of this contract the following policies of insurance: a. Workers' Compensation Insurance: Before beginning work, the Contractor shall furnish to the City a certificate of insurance as proof that he has taken out full workers' compensation insurance for all persons whom he may employ directly or through sub-contractors in carrying out the work specified herein, in accordance with the laws of the State of California. Such insurance shall be maintained in full force and effect during the period covered by this contract. In accordance with the provisions of Section 3700 of the California Labor Code, every Contractor shall secure the payment of compensation to his employees. The Contractor, prior to commencing work, shall sign and file with the City a certification as follows: "I am aware of the provisions of Section 3700 of the Labor Code which requires every employer to be insured against liability for workers' compensation or to undertake self- insurance in accordance with the provisions of that Code, and I will comply with such provisions before commencing the performance of work of this contract." b. For all operations of the Contractor or any sub- contractor in performing the work provided for herein, insurance with the following minimum limits and coverage: 1) General Liability - $1,000,000 per occurrence for bodily injury, personal injury and property damage. If Commercial General Liability insurance or other form with a general aggregate limit is used, either the general aggregate limit shall apply separately to this Agreement or the general aggregate limit shall be twice the required occurrence limit. 2) Automobile - $1,000,000 per accident for bodily injury and property damage. c. Each such policy of insurance provided for in paragraph b. shall: 1) Be issued by an insurance company approved in writing by City, which is authorized to do business in the State of California. 2) Name as additional insured the City of Diamond Bar, its officers, agents and employees, and any other parties specified in the bid documents to be so included; 3) Specify it acts as primary insurance and that no insurance held or owned by the designated additional insured shall be called upon to cover a loss under the policy; 4) Contain a clause substantially in the following words: "It is hereby understood and agreed that this policy may not be canceled nor the amount of the coverage thereof reduced until thirty (30) days after receipt by City of a written notice of such cancellation or reduction of coverage." 5) Waives all right of subrogation against all persons and entities specified in subparagraph 4.c.(2) hereof to be listed as additional insured in the policy of insurance provided for in paragraph b. by reason of any claim arising out of or connected with the operations of Contractor or any sub-contractor in performing the work provided for herein; 6) Otherwise be in form satisfactory to the City. d. The Contractor shall, prior to performing any work under this Agreement, deliver to the City Manager or his designee the original policies of insurance required in paragraphs a. and b. hereof, or deliver to the City Manager or his designee a certificate of the insurance company, showing the issuance of such insurance, and the additional insured and other provisions required herein. PREVAILING WAGE: Notice is hereby given that in accordance with the provisions of California Labor Code, Division 2, Part 7, Chapter 1, Articles 1 and 2, the Contractor is required to pay not less than the general prevailing rate of per diem wages for work of a similar character in the locality in which the public works is performed, and not less than the general prevailing rate of per diem wages for holiday and overtime work. In that regard, the Director of the Department of Industrial Relations of the State of California is required to and has determined such general prevailing rates of per diem wages. Copies of such prevailing rates of per diem wages are on file in the Office of the City Clerk of the City of Diamond Bar, 21810 Copley Drive, Diamond Bar, California, and are available to any interested party on request. City also shall cause a copy of such determinations to be posted at the job site. Contractor shall forfeit, as penalty to City, not more than two hundred dollars ($200.00) for each laborer, workman or mechanic employed for each calendar day or portion thereof, if such laborer, workman or mechanic is paid less than the general prevailing rate of wages hereinbefore stipulated for any work done under this Agreement, by him or by any sub-contractor under him. Contractor and any of its sub-contractors must be registered with the Department of Industrial Relations pursuant to Labor Code section 1725.5, which precludes the award of a contract for a public work on any public works project awarded after April 1, 2015 to a person not registered. This Agreement is subject to compliance monitoring and enforcement by the Department of Industrial Relations. INTERPRETATION OF DOCUMENTS: If any person contemplating submitting a bid for proposed contract is in doubt as to the true meaning of any part of the drawings, specifications, or other contract documents, or finds discrepancies in, or omissions from the drawings and specifications, he may submit to the City a written request for an interpretation or correction thereof. The person submitting the request will be responsible for its prompt delivery. Any interpretation or correction of the contract documents will be made only by Addendum duly issued and a copy of such addendum will be mailed or delivered to each person receiving a set of the contract document. No person is authorized to make any oral interpretation of any provision in the contract documents to any bidder, and no bidder is authorized to rely on any such unauthorized oral interpretation. DISQUALIFICATION OF BIDDERS: More than one proposal from an individual, firm partnership, corporation, or association under the same or different names, will not be considered. Reasonable grounds for believing that any bidder is interested in more than one proposal for the work contemplated will cause the rejection of all proposals in which such bidder is interested. If there is reason for believing that collusion exists among the bidders, all bids will be rejected and none of the participants in such collusion will be considered in future proposals. No award will be made to any bidder who cannot give satisfactory assurance as to his ability to carry out the Contract, both from his financial rating and by reason of his previous experience as a Contractor on work of the nature contemplated in the Contract. The bidder may be required to submit his record of work of similar nature to that proposed under these specifications, and unfamiliarity with the type of work may be sufficient cause for rejection of the bid. INELIGIBLE SUBCONTRACTORS: The successful bidder shall be prohibited from performing work on this project with a subcontractor who is ineligible to perform work on the project pursuant to Section 1777.1 or 1777.7 of the Labor Code. AWARD OF CONTRACT: No proposal will be considered from a Contractor who is not licensed as a Class C-39 contractor at time of award in accordance with the provisions of the Contractor’s License Law (California Business and Professions Code, Section 7000 et seq.) and rules and regulations adopted pursuant thereto or to whom a proposal form has not been issued by the City of Diamond Bar. The City may award the Contract to the lowest responsible bidder on the total base bid. Bids will be compared on the basis of the lowest possible cost relative to the alternate or alternates selected and the Contract, if awarded, will be awarded to a responsible bidder whose proposal complies with the requirements of these specifications. The award, if made, will be made within ninety (90) calendar days after the opening of the proposals; provided that the award may be made after said period of the successful bidder shall not have given the City written notice of the withdrawal of his bid. A contractor or subcontractor shall not be qualified to bid on, be listed in a bid proposal, subject to the requirements of Public Contract Code §4104, or engage in the performance of any contract for public work, as defined in the Public Contract Code, unless currently registered and qualified to perform public work pursuant to Section 1725.5. It is not a violation of Labor Code §1771.1 for an unregistered contractor to submit a bid that is authorized by Business and Professions Code § 7029.1 or by Public Contract Code §§ 10164 and 20103.5, provided the contractor is registered to perform public work pursuant to Labor Code § 1725.5 at the time the contract is awarded. This project is subject to compliance monitoring and enforcement by the Department of Industrial Relations. The prime contractor is required to post job sits as prescribed by regulation pursuant to Labor Code § 1771.4 and all contractors must secure the payment of compensation to its employees pursuant to Labor Code § 1869. COMPETENCY OF BIDDERS: In selecting the lowest responsible bidder, consideration will be given not only to the financial standing but also to the general competency of the bidder including qualifications, references, proper licensing, adequate workforce and experience for the performance of the work covered by the proposal. QUALIFICATION OF BIDDERS: Each bidder shall be skilled and regularly engaged in the general class or type of work called for under the contract. A statement setting forth his/her experience shall be submitted by each bidder on the EXPERIENCE STATEMENT form provided. EXPERIENCE STATEMENT To be responsive, the bidder must list below a minimum of three public agencies for which bidder has performed similar work within the past five years. Only projects in excess of $200,000 each qualify as similar for this project. 1. Project Title Contract Amount Type of Work Client Agency Project Manager Phone Date Completed % Subcontracted 2. Project Title Contract Amount Type of Work Client Agency Project Manager Phone Date Completed % Subcontracted 3. Project Title Contract Amount Type of Work Client Agency Project Manager Phone Date Completed % Subcontracted NOTE: If requested by the City, the bidder shall furnish a certified financial statement, references, and other information sufficiently comprehensive to permit an appraisal of his current financial condition. Bidder's Signature ANDERSON PARK ROOF REPAIR $ 110,040.00 TREMCO BIO-ALPHAGUARD & SHEET METAL CITY OF CARSON BRENT SEVERTSON (310) 830-7600 8/15/2016 0 RIVERA ES $41,900.00 ROOF REPAIR EL RANCHO UNIFIED SCHOOL DISTRICT CARLOS JIMENEZ (562) 801-5254 12/03/2016 0 DCS,KITCHEN ROOF REPAIR $45,600.00 ROOF REPAIR CAL-STATE UNIVERSITY LONG BEACH DANA MORLEY (562) 985-4111 6/12/2018 0 Each bidder shall possess a valid Contractor's License issued by the Contractor's State License Board at the time his/her bid is submitted. The class of license shall be applicable to the work specified in the contract. Each bidder shall also have no less than five (5) years of experience in the magnitude and character of the work bid. Bidder Qualifications called for to be submitted at time of bid include, but are not necessarily limited to: 1. The Contractor shall have been in business under the same name and California Contractors License for a minimum of five (5) continuous years prior to the bid opening date for this Project. The license used to satisfy this requirement shall be of same type required by the contract. 2. License classification shall be as required by the contract specifications. 3. The Contractor shall have five (5) years of experience in the Application of fluid-applied roof membrane. 4. The Contractor shall perform at least 50% of contract with its own forces. EXECUTION OF CONTRACT: The bidder to whom award is made shall execute a written contract with the City on the agreement form provided, and shall secure all insurance and bonds as herein provided within ten (10) days from the date of written notice of the award. Failure or refusal to enter into a contract as herein provided, or to conform to any of the stipulated requirements in connection therewith shall be just cause for the annulment of the award and the forfeiture of the proposal guarantee. If the successful bidder refuses or fails to execute the Contract, the City may award the Contract to the next lowest responsible bidder or re-advertise. On the failure or refusal of the lowest responsible bidder or next lowest responsible bidder to execute the Contract, such bidder's guarantees shall be likewise forfeited to the City. PERMITS, FEES AND LICENSES: The Contractor shall possess a valid business license prior to the issuance of the first payment made under this Contract. CLAIMS FILING AND PROCESSING: The City and Bidder agree to attempt to orally resolve any disputes which may give rise to a claim (hereafter, "Claim") that falls within the definition of Public Contract Code section 9204 (hereafter, "Section 9204"). If these efforts are unsuccessful, the City and Bidder shall process the Claim in accordance with Section 9204. In summary, if the Bidder decides to submit a Claim to the City, it shall be sent by registered or certified mail, return receipt requested, together with reasonable documentation to support the Claim. A Claim may include a Claim by a subcontractor or a lower tier subcontractor meeting the requirements of Section 9204(d)(5). Within 45 days of receipt of the Claim, or any extension thereof agreed upon by the City and the Bidder, the City will conduct a reasonable review of the Claim and provide the Bidder with a written statement identifying what portion of the Claim is disputed and what portion is undisputed. Payment of any undisputed portion of the Claim shall be made within 60 days after the City issues its written statement. If the City does not provide a written statement within the time specified, the Claim shall be deemed rejected. If the Bidder disputes the City's written statement or if the Claim is deemed rejected, the Bidder may demand in writing by registered or certified mail to the City, return receipt requested, an informal conference to meet and confer in an effort to settle the disputed portion of any Claim. Within 30 days of receipt of such written demand, the City shall schedule a meet and confer conference. If any portion of the Claim remains in dispute after the conference, the City shall, within 10 City business days of the conclusion of the conference, provide the Bidder with a written statement identifying any portion that remains in dispute and any portion that is undisputed. Payment of any undisputed portion shall be made within 60 days after the City issues its written statement. Any remaining disputed portion shall be submitted to nonbinding mediation in accordance with Section 9204(c)(2)(B), unless the Bidder and City waive the mediation upon mutual written agreement. CONFLICT OF INTEREST: In the procurement of supplies, equipment, construction and services by sub- recipients, the conflict-of-interest provisions in (State LCA-24 CFR 85.36 and Non-Profit Organizations – 24 CFR 84.4), OMB Circular A-110, and 24 CFR 570.611, respectively, shall apply. No employee, officer or agent of the sub-recipient shall participate in selection or in award of administration of a contract supported by Federal funds if a conflict of interest, real or apparent, would be involved. DECLARATION OF ELIGIBILITY TO CONTRACT [Labor Code Section 1777.1; Public Contract Code Section 6109] The undersigned, a duly authorized representative of the contractor, certifies and declares that: 1. The contractor is aware of Sections 1777.1 and 1777.7 of the California Labor Code, which prohibit a contractor or subcontractor who has been found by the Labor Commissioner or the Director of Industrial Relations to be in violation of certain provisions of the Labor Code, from bidding on, being awarded, or performing work as a subcontractor on a public works project for specified periods of time. 2. The contractor is not ineligible to bid on, be awarded or perform work as a subcontractor on a public works project by virtue of the foregoing provisions of Sections 1777.1 or 1777.7 of the California Labor Code or another provision of law. 3. The contractor is aware of California Public Contract Code Section 6109, which states: (a) A public entity, as defined in Section 1100 [of the Public Contract Code], may not permit a contractor or subcontractor who is ineligible to bid or work on, or be awarded, a public works project pursuant to Section 1777.1 or 1777.7 of the Labor Code to bid on, be awarded, or perform work as a subcontractor on, a public works project. Every public works project shall contain a provision prohibiting a contractor from performing work on a public works project with a subcontractor who is ineligible to perform work on the public works project pursuant to Section 1777.1 or 1777.7 of the Labor Code. (b) Any contract on a public works project entered into between a contractor and a debarred subcontractor is void as a matter of law. A debarred subcontractor may not receive any public money for performing work as a subcontractor on a public works contract, and any public money that may have been paid to a debarred subcontractor by a contractor on the project shall be returned to the awarding body. The contractor shall be responsible for the payment of wages to workers of a debarred subcontractor who has been allowed to work on the project. 4. The contractor has investigated the eligibility of each and every subcontractor the contractor intends to use on this public works project, and determined that none of them is ineligible to perform work as a subcontractor on a public works project by virtue of the foregoing provisions of the Public Contract Code Sections 1777.1 or 1777.7 of the Labor Code, or any other provision of law. I declare under penalty of perjury under the laws of the State of California that the foregoing is true and correct. Executed this day of ________________, 201_, at ___________________ (place of execution). Signature Name: Title: Name of Contractor: _____________________________ JANUARY 24, 2024 MONTEBELLO, CALIFORNIA ANIBAL CABRAL CEO 4 SEASONS ROOFING, INC. BIDDER'S VIOLATION OF LAW/SAFETY QUESTIONNAIRE In accordance with Government Code Section 14310.5 and in conformance with Public Contract Code Section 10162, the Bidder shall complete, under penalty of perjury, the following questionnaire: QUESTIONNAIRE Has the Bidder, any officer, principal or employee of the Bidder who has a proprietary interest in the business of the Bidder, ever been disqualified, removed, or otherwise prevented from bidding on or completing a federal, state or local government project because of violation of law or a safety regulation? YES NO If the answer is yes, explain the circumstances in the following space: STATEMENT In conformance with Public Contract Code Section 10232, the Contractor, hereby states under penalty of perjury, that no more than on final unappealable finding of contempt of court by a federal court has been issued against the Contractor within the immediately preceding two-year period because of the Contractor’s failure to comply with an order of a federal court which orders the Contractor to comply with an order of the National Labor Relations Board. NOTE: The above Statement and Questionnaire are part of the Proposal. Signing this Proposal on the signature portion thereof shall also constitute signature of this Statement and Questionnaire. Bidders are cautioned that making a false certification may subject the certifier to criminal prosecution. CONTRACTOR'S INDUSTRIAL SAFETY RECORD Project Identification Bid Date This information must include all construction work undertaken in the State of California by the bidder and any partnership, joint venture or corporation that any principal of the bidder participated in as a principal or owner for the last five calendar years and the current calendar year prior to the date of bid submittal. Separate information shall be submitted for each particular partnership, joint venture, corporation or individual bidder. The bidder may attach any additional information or explanation of data, which he would like, taken into consideration in evaluating the safety record. An explanation must be attached of the circumstances surrounding any and all fatalities. ITEM 5 CALENDAR YEARS PRIOR TO CURRENT YEAR CURRENT YEAR 2018 2019 2020 2021 2022 TOTAL 2023 No. of Contracts Total dollar amount of contracts (in 1,000’s) No. of lost workday cases No. of lost work day cases involving permanent transfer to another job or termination of employment No. of lost workdays CITY HALL RE-ROOF AND REHABILITATION JANUARY 25, 2024 18 22 17 123 19 930 970 980 990 3531 985 4,855 980 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 *The information required for this item is the same as required for columns 3 to 6, Code 10, Occupational Injuries, Summary - Occupational Injuries and Illnesses, OSHA No. 102. The above information was compiled from the records that are available to me at this time and I declare under penalty of perjury that the information is true and accurate within the limitations of these records. ______________________________ ________________________________ Name of Bidder (Print Signature ______________________________ ________________________________ Address State Contractor’s Lic. No. & Class ______________________________ ________________________________ City Zip Code Telephone 4 SEASONS ROOFING, INC. 1300 WEST COLEGROVE AVENUE MONTEBELLO, CALIFORNIA 90640 ANIBAL CABRAL 857018 C-39 (323) 726-9615 City of Diamond Bar City Hall Re-Roof Project 070150 Preparation For Re-Roofing 070150 - Page 1 of 4 PREPARATION FOR RE-ROOFING SECTION 070150 - PREPARATION FOR RE-ROOFING PART 1 - GENERAL 1.1 SUMMARY A. Section Includes: 1. Roof tear-off. 2. Removal of solar panels and all components associated with the solar panels. 3. Temporary roofing membrane. 4. Temporary roof drainage. 1.2 MATERIALS OWNERSHIP A. Except for items or materials indicated to be reused, reinstalled, or otherwise indicated to remain Owner's property, demolished materials shall become Contractor's property and shall be removed from Project site. 1.3 DEFINITIONS A. Roofing Terminology: Refer to ASTM D 1079 and glossary in NRCA's "The NRCA Roofing and Waterproofing Manual" for definition of terms related to roofing work in this Section. B. Existing Membrane Roofing System: Roofing system identified above, including roofing membrane, roof insulation, surfacing, and components and accessories between deck and roofing membrane. C. Roof Tear-Off: Removal of existing membrane roofing system from deck. D. Remove: Detach items from existing construction and legally dispose of them off-site unless indicated to be removed and reinstalled. E. Existing to Remain: Existing items of construction that are not indicated to be removed. F. Construction Waste: Building and site improvement materials and other solid waste resulting from construction, remodeling, renovation, or repair operations. Construction waste includes packaging. G. Demolition Waste: Building and site improvement materials resulting from demolition or selective demolition operations. H. Disposal: Removal off-site of demolition and construction waste and subsequent sale, recycling, reuse, or deposit in landfill or incinerator acceptable to authorities having jurisdiction. 1.4 ACTION SUBMITTALS A. Product Data: For each type of product indicated. B. Temporary Roofing: Include Product Data and description of temporary roofing system. If temporary roof will remain in place, submit surface preparation requirements needed to receive permanent roof, and City of Diamond Bar City Hall Re-Roof Project 070150 Preparation For Re-Roofing 070150 - Page 2 of 4 PREPARATION FOR RE-ROOFING submit a letter from roofing membrane manufacturer stating acceptance of the temporary membrane and that its inclusion will not adversely affect the roofing system's resistance to fire and wind. 1.5 INFORMATIONAL SUBMITTALS A. Qualification Data: For Installer B. Digital Images or Videos: Show existing conditions of adjoining construction and site improvements, including exterior and interior finish surfaces, which might be misconstrued as having been damaged by reroofing operations. Submit before Work begins. C. Proposed Protection Measures: Submit report, including Drawings, that indicates the measures proposed for protecting individuals and property for environmental protection, for dust control and for noise control. Indicate proposed locations and construction of barriers. D. Schedule of Re-Roofing Preparation Activities: Indicate the following: 1. Detailed sequence of re-roofing preparation work, with starting and ending dates for each activity. Ensure occupants' on-site operations are uninterrupted. 2. Interruption of utility services. Indicate how long utility services will be interrupted. 3. Coordination for shutoff, capping, and continuation of utility services. 1.6 QUALITY ASSURANCE A. Installer Qualifications: Installer of new membrane roofing system. B. Regulatory Requirements: Comply with governing EPA notification regulations before beginning membrane roofing removal. Comply with hauling and disposal regulations of authorities having jurisdiction. C. Reroofing Conference: Conduct conference at Project site. 1. Meet with Owner; roofing system manufacturer's representative; roofing Installer including project manager, superintendent, and foreman; and installers whose work interfaces with or affects reroofing including installers of roof accessories and roof-mounted equipment. 2. Review methods and procedures related to roofing system tear-off and replacement including, but not limited to, the following: a. Reroofing preparation, including membrane roofing system manufacturer's written instructions. b. Temporary protection requirements for existing roofing system that is to remain during and after installation. c. Construction schedule and availability of materials, Installer's personnel, equipment, and facilities needed to make progress and avoid delays. d. Existing deck removal procedures and Owner notifications. e. Condition and acceptance of existing roof deck and base flashing substrate for reuse. City of Diamond Bar City Hall Re-Roof Project 070150 Preparation For Re-Roofing 070150 - Page 3 of 4 PREPARATION FOR RE-ROOFING f. Structural loading limitations of deck during reroofing. g. Base flashings, special roofing details, drainage, penetrations, equipment curbs, and condition of other construction that will affect reroofing. h. Existing conditions that may require notification of Owner before proceeding. 1.7 PROJECT CONDITIONS A. Protect building to be reroofed, adjacent buildings, walkways, site improvements, exterior plantings, and landscaping from damage or soiling from reroofing operations. B. Maintain access to existing walkways, corridors, and other adjacent occupied or used facilities. C. Limit construction loads on roof to rooftop equipment wheel loads and uniformly distributed loads not exceeding recommendations of Contractor's professional engineer based upon site inspection and analysis. D. Weather Limitations: Proceed with reroofing preparation only when existing and forecasted weather conditions permit Work to proceed without water entering existing roofing system or building. E. Daily Protection: Coordinate installation of roofing so insulation and other components of roofing system not permanently exposed are not subjected to precipitation or left uncovered at the end of the workday or when rain is forecast. PART 2 - PRODUCTS 2.1 TEMPORARY ROOFING MATERIALS A. Design and selection of materials for temporary roofing are responsibilities of Contractor. 2.2 TEMPORARY ROOF DRAINAGE A. Design and selection of materials for temporary roof drainage are responsibilities of the Contractor. PART 3 - EXECUTION 3.1 PREPARATION, GENERAL A. Pollution Control: Comply with environmental regulations of authorities having jurisdiction. Limit spread of dust and debris. 1. Remove and transport debris in a manner that will prevent spillage on adjacent surfaces and areas. 2. Remove debris from building roof by chute, hoist, or other device that will convey debris to grade level. B. Air Intake Shutdown: Coordinate with Owner to shut down air-intake equipment in the vicinity of the Work. Cover air-intake louvers before proceeding with reroofing work that could affect indoor air quality or activate smoke detectors in the ductwork. C. Temporary Weather Protection: During removal operations, have sufficient and suitable materials on-site to facilitate rapid installation of temporary protection in the event of unexpected rain. City of Diamond Bar City Hall Re-Roof Project 070150 Preparation For Re-Roofing 070150 - Page 4 of 4 PREPARATION FOR RE-ROOFING 3.2 ROOF TEAR-OFF A. General: Notify Owner each day of extent of roof tear-off proposed for that day and obtain authorization to proceed. B. Roof Tear-Off: 1. Remove existing roofing membrane, other membrane roofing system components, flashings, and insulations down to the decking. 2. Remove pitch pockets. 3. Remove all solar panels, frames and ballast associated with solar panels, and all conduit and panels. 3.3 DECK PREPARATION A. Inspect deck after tear-off of membrane roofing system. B. Verify that deck is sound and dry. C. If broken or loose fasteners that secure deck panels to one another or to structure are observed or if deck appears or feels inadequately attached, immediately notify Owner. Do not proceed with installation until directed by Owner. D. Unsuitable Deck: If deck surface is not suitable for receiving new roofing or if structural integrity of deck is suspect, immediately notify Owner. Do not proceed with installation until directed by Owner. 3.4 TEMPORARY ROOFING MEMBRANE A. Install approved temporary roofing membrane over area to be reroofed. B. Remove temporary roofing membrane before installing new roofing membrane. 3.5 DISPOSAL A. Collect demolished materials and place in containers. Promptly dispose of demolished materials. Do not allow demolished materials to accumulate on-site. 1. Storage or sale of demolished items or materials on-site is not permitted. B. Transport and legally dispose of demolished materials off Owner's property. 3.6 CLEANING A. Clean adjacent structures and improvements of dust, dirt, and debris caused by preparation for re-roofing operations. Return adjacent areas to condition existing before operations began. END OF SECTION 070150 City of Diamond Bar City Hall Re-Roof Project 075416 Ketone Ethylene Ester Roofing 075416 - Page 1 of 15 KETONE ETHYLENE ESTER (KEE) ROOFING SECTION 075416 - KETONE ETHYLENE ESTER (KEE) ROOFING PART 1 - GENERAL 1.1 SUMMARY A. Section Includes: 1. Adhered thermoplastic KEE roofing system on metal deck, including: 2. Roof insulation. 3. Roof insulation cover board. 4. Walkway material. 5. Roof hatch with safety railing. 6. Skylight guards. B. Related Sections: 1. Division 07 Section "Preparation for Re-Roofing". 1.2 DEFINITIONS A. Roofing Terminology: Refer to ASTM D1079 "Standard Terminology Relating to Roofing and Waterproofing" and glossary in applicable edition of NRCA's "The NRCA Roofing Manual: Membrane Roof Systems" for definition of terms related to roofing work in this Section. 1.3 PREINSTALLATION MEETINGS A. Preinstallation Roofing Conference: Conduct conference at Project site. 1. Meet with Owner, roofing Installer, roofing system manufacturer's representative, and installers whose work interfaces with or affects roofing, including installers of roof accessories and roof- mounted equipment. 2. Review drawings and specifications. 3. Review methods and procedures related to roofing installation, including manufacturer's written instructions. 4. Review and finalize construction schedule and verify availability of materials, Installer's personnel, equipment, and facilities needed to make progress and avoid delays. 5. Examine substrate conditions and finishes for compliance with requirements, including flatness and fastening. 6. Review structural loading limitations of roof deck during and after roofing. City of Diamond Bar City Hall Re-Roof Project 075416 Ketone Ethylene Ester Roofing 075416 - Page 2 of 15 KETONE ETHYLENE ESTER (KEE) ROOFING 7. Review base flashings, special roofing details, roof drainage, roof penetrations, equipment curbs, and condition of other construction that will affect roofing system. 8. Review temporary protection requirements for roofing system during and after installation. 9. Review roof observation and repair procedures after roofing installation. 1.4 ACTION SUBMITTALS A. Product Data: For each type of product indicated. B. Sustainable Design Submittals: 1. Product Test Reports for Solar Reflectance: For roof materials, indicating that roof materials comply with Solar Reflectance Index requirement. C. Shop Drawings: For roofing system. Include plans, elevations, sections, details, and attachments to other work. 1. Base flashings and membrane terminations. a. Indicate details meet requirements of NRCA required by this Section. D. Samples for Verification: For the following products: 1. Sheet roofing. 2. Walkway pads. 1.5 INFORMATIONAL SUBMITTALS A. Contractor's Product Certificate: Submit certificate, indicating products intended for Work of this Section, including product names and numbers and manufacturers' names, with statement indicating that products to be provided meet the requirements of the Contract Documents. B. Qualification Data: For Installer, Manufacturer and Roofing Inspector. 1. Include letter from Manufacturer written for this Project indicating approval of Installer. C. Manufacturer Certificates: Signed by roofing manufacturer certifying that roofing system complies with requirements specified in "Performance Requirements" Article. 1. Submit evidence of compliance with performance requirements. a. Include: UL listing certificate and Energy Performance. 2. Product Compatibility: Indicate manufacturer has verified compatibility of roofing system components, including but not limited to: Roofing membrane, flashing sheets, adhesives, and sealants. D. Warranties: Unexecuted sample copies of special warranties. City of Diamond Bar City Hall Re-Roof Project 075416 Ketone Ethylene Ester Roofing 075416 - Page 3 of 15 KETONE ETHYLENE ESTER (KEE) ROOFING E. Inspection Reports: Reports of Roofing Inspector. Include weather conditions, description of work performed, tests performed, defective work observed, and corrective actions taken to correct defective work. 1. Submit reports within 24 hours after inspection. 1.6 CLOSEOUT SUBMITTALS A. Executed copies of warranties. B. Maintenance Data: To include in maintenance manuals. 1.7 QUALITY ASSURANCE A. Installer Qualifications: An employer of workers trained and certified by manufacturer, including a full- time on-site supervisor with a minimum of five years' experience installing products comparable to those specified, able to communicate verbally with Contractor and employees, and qualified by the manufacturer to install manufacturer's product and furnish warranty of type specified. B. Manufacturer Qualifications: Approved manufacturer listed in this Section, UL listed for roofing systems comparable to that specified for this Project, with minimum five years' experience in manufacture of thermoplastic roof membrane products in successful use in similar applications. 1. Approval of Comparable Products: Submit the following in accordance with project substitution requirements, within time allowed for substitution review: a. Product data, including certified independent test data indicating compliance with requirements. b. Samples of each component. c. Sample submittal from similar project. d. Project references: Minimum of five installations of specified products not less than five years old, with Owner and Architect contact information. e. UL listing. f. Nemo report. g. Sample warranty. 2. Substitutions following award of contract are not allowed except as stipulated in Division 01 General Requirements. 3. Approved manufacturers must meet separate requirements of Submittals Article. C. Roofing Inspector Qualifications: A technical representative of manufacturer not engaged in the sale of products and experienced in the installation and maintenance of the specified roofing system, qualified to perform roofing observation and inspection specified in Field Quality Control Article, to determine Installer's compliance with the requirements of this Project, and approved by the manufacturer to issue warranty certification. The Roofing Inspector shall be one of the following: City of Diamond Bar City Hall Re-Roof Project 075416 Ketone Ethylene Ester Roofing 075416 - Page 4 of 15 KETONE ETHYLENE ESTER (KEE) ROOFING 1. An authorized full-time technical employee of the manufacturer. 2. An independent party certified as a Registered Roof Observer by the International Institute of Building Enclosure Consultants (formerly the Roof Consultants Institute) retained by the Contractor or the Manufacturer and approved by the Manufacturer. D. Manufacturer's Installation Instructions: Obtain and maintain on-site access to manufacturer's written recommendations and instructions for installation of products. 1.8 DELIVERY, STORAGE, AND HANDLING A. Deliver roofing materials to Project site in original containers with seals unbroken and labeled with manufacturer's name, product brand name and type, date of manufacture, approval or listing agency markings, and directions for storing and mixing with other components. B. Store liquid materials in their original undamaged containers in a clean, dry, protected location and within the temperature range required by roofing system manufacturer. Protect stored liquid material from direct sunlight. 1. Discard and legally dispose of liquid material that cannot be applied within its stated shelf life. C. Protect roof insulation materials from physical damage and from deterioration by sunlight, moisture, soiling, and other sources. Store in a dry location. Comply with insulation manufacturer's written instructions for handling, storing, and protecting during installation. D. Handle and store roofing materials and place equipment in a manner to avoid permanent deflection of deck. 1.9 PROJECT / FIELD CONDITIONS A. Weather Limitations: Proceed with installation only when existing and forecasted weather conditions permit roofing system to be installed according to manufacturer's written instructions and warranty requirements. B. Daily Protection: Coordinate installation of roofing so insulation and other components of roofing system not permanently exposed are not subjected to precipitation or left uncovered at the end of the workday or when rain is forecast. 1. Provide tie-offs at end of each day's work to cover exposed roofing and insulation with a course of roofing sheet securely in place with joints and edges sealed. 2. Complete terminations and base flashings and provide temporary seals to prevent water from entering completed sections of roofing. 3. Remove temporary plugs from roof drains at end of each day. 4. Remove and discard temporary seals before beginning work on adjoining roofing. 1.10 WARRANTY A. Manufacturer's Warranty: Roof System Manufacturer's standard form in which Manufacturer agrees to repair or replace components of roofing system that fail in materials or workmanship within warranty period, as follows. City of Diamond Bar City Hall Re-Roof Project 075416 Ketone Ethylene Ester Roofing 075416 - Page 5 of 15 KETONE ETHYLENE ESTER (KEE) ROOFING 1. Form of Warranty: Manufacturer's standard warranty form. 2. Scope of Warranty: Work of this Section and including sheet metal details and termination details installed by the roof system Installer and approved by the Roof System Manufacturer. 3. Warranty Period: 30 years from date of completion. B. Manufacturer Inspection Services: By manufacturer's technical representative, to report maintenance responsibilities to Owner necessary for preservation of Owner's warranty rights. The cost of manufacturer's inspections is included in the Contract Sum. 1. Inspections to occur in following years: 2, 5, 10, 15, 20, and 25 following completion. C. Installer Warranty: Installer's warranty signed by Installer, as follows. 1. Form of Warranty: Form acceptable to Roofing Manufacturer and Owner. 2. Scope of Warranty: Work of this Section. 3. Warranty Period: 2 years from date of completion. PART 2 - PRODUCTS 2.1 MANUFACTURERS A. Basis of Design: The roof system specified in this Section is based upon products of Tremco CPG Incorporated. B. Source Limitations: Obtain components for roofing system from same manufacturer as membrane roofing or manufacturer approved by membrane roofing manufacturer. 2.2 PERFORMANCE REQUIREMENTS A. General Performance: Installed membrane roofing and base flashings shall withstand specified uplift pressures, thermally induced movement, and exposure to weather without failure due to defective manufacture, fabrication, installation, or other defects in construction. Membrane roofing and base flashings shall remain watertight. 1. Accelerated Weathering: Roofing system shall withstand 10,000 hours of exposure when tested according to ASTM G152, ASTM G154, or ASTM G155. 2. Impact Resistance: Roof membrane shall resist impact damage when tested according to ASTM D3746/D3746M, ASTM D4272/D4272M, or the "Resistance to Foot Traffic Test" in FM Approvals 4470. B. Flashings and Fastening: Provide base flashings, perimeter flashings, detail flashings and component materials and installation techniques that comply with requirements and recommendations of the following: 1. NRCA Roofing Manual (Sixth Edition) for construction details and recommendations. 2. SMACNA Architectural Sheet Metal Manual (Seventh Edition) for construction details. City of Diamond Bar City Hall Re-Roof Project 075416 Ketone Ethylene Ester Roofing 075416 - Page 6 of 15 KETONE ETHYLENE ESTER (KEE) ROOFING C. Exterior Fire-Test Exposure: ASTM E108, Class A; for application and roof slopes indicated, as determined by testing identical membrane roofing materials by a qualified testing agency. Materials shall be identified with appropriate markings of applicable testing agency. D. Energy Performance: Roofing system shall have an initial solar reflectance index of not less than 0.70 and an emissivity of not less than 0.75 when tested according to CRRC-1. 2.3 MATERIALS, GENERAL A. Material Compatibility: Roofing materials shall be compatible with one another and adjacent materials under conditions of service and application required, as demonstrated by roof membrane manufacturer based on testing and field experience. 2.4 THERMOPLASTIC MEMBRANE MATERIALS A. KEE Roof Membrane: 1. Thermoplastic Ketone Ethylene Ester (KEE) coated polyester fabric-reinforced fleece-backed sheet, ASTM D6754. a. Basis of design product: Tremco, TremPly KEE FB Single Ply Roof Membrane. b. Breaking Strength, minimum, ASTM D751: Machine direction, 500 lbf (87 kN/m); Cross machine direction 400 lbf (70 kN/m). c. Tear Strength, minimum, ASTM D751: Machine direction, 125 lbf (22 kN/m); Cross machine direction (145 lbf (25 kN/m). d. Elongation at Break, ASTM D751: 20 percent. e. Dynamic Impact/Puncture Resistance, ASTM D5635: Pass. f. Minimum Membrane Thickness, nominal, less backing, ASTM D751: 60 mils (1.5 mm). g. Thickness over fiber, optical method: 0.016 inches. h. Accelerated Weathering, ASTM G155 and ASTM G154: Not greater than 5,000 hr., no cracking or crazing. i. Abrasion Resistance, ASTM D3389: Not greater than 2,000 cycles, H-18 wheel, 1,000 g load. j. Color: White. k. Solar Reflectance Index (SRI), ASTM E1980: 110 (White, initial), 86 (White, 3-yr aged). B. Sheet Flashing: Manufacturer's standard, smooth-backed, sheet flashing of same material, type, reinforcement, thickness and color as KEE roof membrane. 2.5 AUXILIARY ROOFING MATERIALS A. General: Auxiliary membrane roofing materials recommended by roofing system manufacturer for intended use, and compatible with membrane roofing. City of Diamond Bar City Hall Re-Roof Project 075416 Ketone Ethylene Ester Roofing 075416 - Page 7 of 15 KETONE ETHYLENE ESTER (KEE) ROOFING 1. Liquid-type auxiliary materials shall comply with VOC limits of authorities having jurisdiction. B. Membrane Bonding Adhesive: 1. Bonding adhesive, waterborne low-VOC, for bonding KEE fleece-backed single ply membranes and flashings to substrates. a. VOC, maximum, ASTM D3960: 153 g/L. C. Flashing Membrane Adhesive: 1. Bonding adhesive, solvent based fast drying, VOC-compliant, for bonding KEE smooth-backed single ply membranes and flashings to substrates. a. VOC, maximum, ASTM D 3960: 200 g/L. D. Polyurethane Elastomeric Fluid-Applied System: Two-coat fluid-applied roofing membrane formulated for application over prepared existing roofing substrate. 1. Polyurethane Roof Coating System Base Coat: Bio-based, low-odor low-VOC two-part, for use with a compatible top coat. a. Minimum Thickness, Base Coat reinforced over Single-Ply: 48 mils (1.22 mm) wet. 2. Polyurethane roof coating system top coat, bio-based low-odor low-VOC two-part, for application over compatible base coat. a. Minimum Thickness, reinforced system: 32 mils (0.81 mm) wet. E. Primers: 1. Primer for Asphaltic and Single-Ply Membranes: Water-based, polymer-modified quick-dry low odor primer. 2. Primer for Non-Porous Surfaces: Single-part, water based primer to promote adhesion of urethanes to metals, PVC and other non-porous surfaces. 3. Primer for Intercoat and Substrate Adhesion: Single-part, quick-drying primer to promote adhesion of urethane products to previous urethane coats and to other approved surfaces. F. Fluid-Applied Roofing Reinforcing Fabric: 1. Polyester Reinforcing and Protection Fabric: 100 percent stitch-bonded mildew-resistant polyester fabric intended for reinforcement of compatible fluid-applied membranes and flashings. G. Efis and Metal Coating, Elastomeric: High-solids breathable acrylic polymer coating formulated for use on masonry substrates. 1. Tensile Strength at 77 deg. F, (25 deg. C): 375 psi (2585 kPa). 2. Tear Resistance, ASTM D522: 135 lbf/in (23 kN/m). 3. Elongation at 77 deg. F, (25 deg. C) ASTM D2370: 200 percent. City of Diamond Bar City Hall Re-Roof Project 075416 Ketone Ethylene Ester Roofing 075416 - Page 8 of 15 KETONE ETHYLENE ESTER (KEE) ROOFING 4. Flexibility at -15 deg F (-26 deg C), ASTM D522: Pass 1/2 inch mandrel bend. 5. Solids by volume, minimum ASTM D5201): 50 percent. 6. Water Vapor Permeance, ASTM E96: 12 perms. 7. Minimum Thickness, Wall Application: 24 mils (0.60 mm) wet. H. Primer, Masonry: Acrylic primer formulated for use on masonry, EIFS, stucco, and other cementitious surfaces, and wood. 1. Flexibility at -15 deg F (-26 deg C), ASTM D1737: Pass 1/8 inch mandrel bend. 2. Solids by volume, percent: 40 percent. 3. VOC: 62 g/L. I. Metal Termination Bars: Manufacturer's standard, predrilled stainless-steel or aluminum bars, approximately 1 by 1/8 inch (25 mm by 3 mm) thick; with anchors. J. Metal Battens: Manufacturer's standard, aluminum-zinc-alloy-coated or zinc-coated steel sheet, approximately 1 inch wide by 0.05 inch (25 mm wide by 1.3 mm) thick, prepunched. K. Fasteners: Factory-coated steel fasteners and metal plates complying with corrosion-resistance provisions in FM Approvals 4470, designed for fastening components to substrate, and acceptable to membrane roofing system manufacturer. L. Joint Sealant: Elastomeric joint sealant compatible with roofing materials, with movement capability appropriate for application. 1. Joint Sealant, Polyurethane: ASTM C920, Type S, Grade NS, Class 50 single-component moisture curing sealant, formulated for compatibility and use in dynamic and static joints; paintable. a. Volatile Organic Compounds (VOC), maximum, ASTM D3960: 40 g/L. b. Hardness, Shore A, ASTM C661: 40. c. Adhesion to Concrete, ASTM C794: 35 pli. d. Tensile Strength, ASTM D412: 350 psi (2410 kPa). e. Color: White. M. Sheet Metal: 1. Clad metal. 2. 24-gauge counterflashing with hemmed edge and wind clips. 3. 24-gauge skirt metal with hemmed edge. N. Roof Hatch: Match existing size. City of Diamond Bar City Hall Re-Roof Project 075416 Ketone Ethylene Ester Roofing 075416 - Page 9 of 15 KETONE ETHYLENE ESTER (KEE) ROOFING 1. Material: 14 gauge G-90 paint bond galvanized steel. 2. Cover: Brake formed, hollow-metal design with 1” fiber board insulation, 3” beaded, overlapping flange, fully welded at corners, and internally reinforced for 40 psf live load. 3. Curb: 12” in height with integral cap flashing, 1” fiberboard insulation, fully welded at corners, and 3-1/2” mounting flange with 7/16” holes provided for securing frame to the roof deck. 4. Gasket: Extruded EPDM rubber gasket permanently adhered to cover. 5. Hinges: Heavy-duty pintle hinges with 3/8” Type 316 stainless steel hinge pins. 6. Latch: Slam latch with interior turn handles and padlock hasps. 7. Finish: Alkyd base red oxide primer. 8. Hardware: Engineered composite compression spring tubes with steel compression springs packed in grease. All other hardware is zinc plated/chromate sealed. O. Hatch Safety Railing: 1. 1 ¼” schedule 40 pipe in 6061 T6 aluminum alloy for posts and rails. 2. Cast aluminum locking mechanism and type 316 stainless steel spring hinges and fasteners. 3. Meet OSHA 29 CFR 1910.23 requirements. 4. Safety yellow powder coat paint finish. P. Skylight Screen Systems, General: Fall protection screen components including wire mesh screen, frame, fittings, and accessories as required for complete installation complying with requirements of authorities having jurisdiction. 1. Application: Curb-mounted perimeter screen frame. 2. Application: Standing seam metal roof-mounted perimeter screen frame clamped to standing seams with puncture-free set screws. 3. Application: Ribbed or corrugated metal roof-mounted perimeter screen frame. 4. Frames: Formed galvanized steel sheet. 5. Screen: Welded wire steel mesh, galvanized, 2 by 2 inches (51 by 51 mm). Q. Prefabricated Pipe Flashings: As recommended by roof membrane manufacturer. R. Miscellaneous Accessories: Provide pourable sealers, clad metal, preformed cone and vent sheet flashings, preformed inside and outside corner sheet flashings, T-joint covers, lap sealants, termination reglets, and other accessories. City of Diamond Bar City Hall Re-Roof Project 075416 Ketone Ethylene Ester Roofing 075416 - Page 10 of 15 KETONE ETHYLENE ESTER (KEE) ROOFING 2.6 ROOF INSULATION MATERIALS A. General: Preformed roof insulation boards manufactured or approved by roofing manufacturer, selected from insulation manufacturer's standard sizes, suitable for application, and of thicknesses indicated. 1. Tapered Insulation: Provide factory-tapered insulation boards fabricated to slope of 1/4 inch per 12 inches (1:48) unless otherwise indicated. 2. Provide preformed saddles, crickets, tapered edge strips, and other insulation shapes where indicated for sloping to drain. Fabricate to slopes indicated, not less than two times the roof slope. B. Roof Insulation: Provide roof insulation product in thicknesses indicated in Part 3 as follows: 1. Board Insulation, Polyisocyanurate: CFC- and HCFC- free, with recycled content glass-fiber mat facer on both major surfaces, ASTM C1289 Type II Class 1. a. Compressive Strength, ASTM D1621: Grade 2: 20 psi (138 kPa). b. Conditioned Thermal Resistance at 75 deg. F (24 deg. C): 14.4 at 2.5 inches (50.8 mm) thick. c. Match existing thickness. 2.7 ROOF INSULATION ACCESSORIES A. Cover Board: 1. Gypsum panel, glass-mat-faced, ASTM C1177/C1177M. a. Thickness: 1/2 inch (12 mm). B. Roof Insulation Adhesive: 1. Urethane adhesive, bead-applied, low-rise two-component solvent-free low odor, formulated to adhere roof insulation to substrate. a. Flame Spread Index, ASTM E84: 10. b. Smoke Developed Index, ASTM E84: 30. c. Volatile Organic Compounds (VOC), maximum, ASTM D3960: 0 g/L. d. Tensile Strength, minimum, ASTM D412: 250 psi (1720 kPa). e. Peel Adhesion, minimum, ASTM D903: 17 lbf/in (2.50 kN/m). f. Flexibility, 70 deg. F (39 deg. C), ASTM D816: Pass. C. Insulation Cant Strips: ASTM C 208, Type II, Grade 1, cellulosic-fiber insulation board. D. Substrate Joint Tape: 6- or 8-inch- (150- or 200-mm-) wide, coated, glass fiber. City of Diamond Bar City Hall Re-Roof Project 075416 Ketone Ethylene Ester Roofing 075416 - Page 11 of 15 KETONE ETHYLENE ESTER (KEE) ROOFING E. Insulation Fasteners: Factory-coated steel fasteners and metal plates complying with corrosion-resistance provisions in FM Approvals 4470, designed for fastening roof insulation and cover boards to substrate, and acceptable to roofing system manufacturer. 2.8 WALKWAY MATERIALS A. Walkway / Protection Mat Material: 1. Protection mat, reinforced KEE membrane mat with serrated slip-resistant surface and enhanced puncture resistance, fabricated for heat welding to compatible KEE membrane surface. a. Mat Size: 28 inches by 48 feet (710 mm by 13.1 m). b. Thickness: 0.234 inch (5.9 mm). c. Puncture resistance: 850 lbs (148 kN/m). d. Tear strength: 350 lbs (60 kN/m). e. Color: Yellow. B. Rubber blocks: 100% rubber blocks with steel channels and reflective strips designed for supporting conduit. PART 3 - EXECUTION 3.1 EXAMINATION A. Examine substrates, areas, and conditions, with Installer present, for compliance with the following requirements and other conditions affecting performance of roofing system: 1. Verify that roof openings and penetrations are in place and curbs are set and braced and that roof drain bodies are securely clamped in place. 2. Verify that wood cants, blocking, curbs, and nailers are securely anchored to roof deck at penetrations and terminations and that nailers match thicknesses of insulation. 3. Steel Roof Deck: a. Verify that deck is securely fastened and properly supported with no projecting fasteners and with no adjacent units in excess of 1/16 inch (1.6 mm) out of plane relative to adjoining deck. B. Proceed with installation only after unsatisfactory conditions have been corrected. 3.2 PREPARATION A. Clean substrate of dust, debris, moisture, and other substances detrimental to roofing installation according to roofing system manufacturer's written instructions. Remove sharp projections. B. Prevent materials from entering and clogging roof drains and conductors and from spilling or migrating onto surfaces of other construction. Remove roof-drain plugs when no work is taking place or when rain is forecast. City of Diamond Bar City Hall Re-Roof Project 075416 Ketone Ethylene Ester Roofing 075416 - Page 12 of 15 KETONE ETHYLENE ESTER (KEE) ROOFING C. Complete terminations and base flashings and provide temporary seals to prevent water from entering completed sections of roofing system at the end of the workday or when rain is forecast. Remove and discard temporary seals before beginning work on adjoining roofing. 3.3 INSTALLATION, GENERAL A. Install roofing system in accordance with manufacturer’s written instructions and approved details. B. NRCA Installation Details: Install roofing system in accordance with applicable NRCA Manual Plates and NRCA recommendations; modify as required to comply with manufacturer's approved details and perimeter fastening requirements. 3.4 INSULATION INSTALLATION A. Coordinate installing membrane roofing system components so insulation is not exposed to precipitation or left exposed at the end of the workday. B. Comply with membrane roofing system and insulation manufacturer's written instructions for installing roof insulation. C. Tapered Crickets: Install tapered crickets under area of roofing to conform to slopes indicated. 1. Where crickets are indicated or required to provide positive slope to drain, make slope of crickets minimum of two times the roof slope. D. Trim surface of insulation where necessary at roof drains so completed surface is flush and does not restrict flow of water. E. Install insulation with long joints of insulation in a continuous straight line with end joints staggered between rows, abutting edges and ends between boards. Fill gaps exceeding 1/4 inch (6 mm) with insulation. 1. Cut and fit insulation within 1/4 inch (6 mm) of nailers, projections, and penetrations. F. Mechanically Fastened and Adhered Insulation: Install each layer of insulation and secure first layer of insulation to deck using mechanical fasteners specifically designed and sized for fastening specified board-type roof insulation to deck type. 1. Fasten first layer of insulation to resist uplift pressure at corners, perimeter, and field of roof. 2. Set each subsequent layer of insulation in ribbons of bead-applied insulation adhesive, firmly pressing and maintaining insulation in place. G. Cover Boards: Install cover boards over insulation with long joints in continuous straight lines with end joints staggered between rows. Offset joints of insulation below a minimum of 6 inches (150 mm) in each direction. Loosely butt cover boards together. 1. Secure cover boards to resist uplift pressure at corners, perimeter, and field of roof. 2. Adhere cover boards by setting in ribbons of bead-applied insulation adhesive, firmly pressing and maintaining cover board in place. City of Diamond Bar City Hall Re-Roof Project 075416 Ketone Ethylene Ester Roofing 075416 - Page 13 of 15 KETONE ETHYLENE ESTER (KEE) ROOFING 3.5 ADHERED MEMBRANE ROOFING INSTALLATION A. Adhere membrane roofing over area to receive roofing and install according to membrane roofing system manufacturer's written instructions. B. Start installation of membrane roofing in presence of membrane roofing system manufacturer's technical personnel. C. Accurately align membrane roofing and maintain uniform side and end laps of minimum dimensions required by manufacturer. Stagger end laps. D. Water-Based Bonding Adhesive: Apply to substrate at rate required by manufacturer. Install membrane immediately into adhesive, avoiding any air entrapment; do not allow adhesive to dry. Roll membrane into wet adhesive. Do not apply adhesive to splice area of membrane. E. In addition to adhering, mechanically fasten membrane roofing securely at terminations, penetrations, and perimeter of roofing. F. Apply membrane roofing with side laps shingled with slope of roof deck where possible. G. Welded Seams: Clean seam areas, overlap membrane roofing, and hot-air weld side and end laps of membrane roofing and sheet flashings according to manufacturer's written instructions to ensure a watertight seam installation. 1. Test lap edges with probe to verify seam weld continuity. Apply lap sealant to seal cut edges of sheet membrane. 2. Verify field strength of seams a minimum of twice daily and repair seam sample areas. 3. Repair tears, voids, and lapped seams in roofing that does not comply with requirements. H. Spread sealant bed over deck drain flange at roof drains and securely seal membrane roofing in place with clamping ring. 3.6 BASE FLASHING INSTALLATION A. Install sheet flashings and preformed flashing accessories and adhere to substrates according to membrane roofing system manufacturer's written instructions. B. Apply bonding adhesive to substrate and underside of sheet flashing at required rate and allow to partially dry. Do not apply to seam area of flashing. C. Flash penetrations, supports, and field-formed inside and outside corners with cured or uncured sheet flashing. Seal top of flashing with butyl tape between membrane and penetration and secure with stainless steel pipe clamps. Three course pipe clamps on square and irregular shaped penetrations with acrylic sealer and polyester reinforcement. D. Terminate field membrane at base of I beam supports and other irregular penetrations. Install fully reinforced liquid applied flashing system 6” up the support/penetration. Grind down to bare metal and prime prior to installation. E. Install new counterflashing and wind clips at all locations. City of Diamond Bar City Hall Re-Roof Project 075416 Ketone Ethylene Ester Roofing 075416 - Page 14 of 15 KETONE ETHYLENE ESTER (KEE) ROOFING F. Install new skirt metal counterflashing at equipment curbs and skylights. G. Seal cracks in top of efis wall and vertical portion on roof side. Prime and surface that portion of the wall with masonry primer and masonry coating system. Finish with paint matching the existing wall. H. Install new clad base flashings and pelican hoods for insulated lines and multiple lines going through the same opening. I. Remove prior repairs over coping joints and fasteners. Seal joints and fasteners with silicone sealant and silicone extrusions. J. Seal the top of all wind screen supports with polyurethane sealant. Grind to bare metal and prime prior to sealant application. K. Install liquid applied flashing system through drain bowls and 2” into the outlet. Grind down to bare metal and prime prior to installation. L. Seal all vent, duct, and pan seams and fasteners with acrylic sealer and polyester reinforcement. Surfaced passive vents, ducts, and pans with metal coating system at a rate of 3 gallons per square. Prepare and prime metal prior to coating application. M. Install a new roof hatch and roof hatch safety railing at the existing location. Follow manufacturer’s written instructions for installation. N. Install new skylight guards over two existing skylights. O. Clean seam areas, overlap, and firmly roll sheet flashings into the adhesive. Hot-air weld side and end laps to ensure a watertight seam installation. P. Seal top termination of base flashing with a metal termination bar and a continuous bead of joint sealant. 3.7 WALKWAY INSTALLATION A. Flexible Walkways: Install walkway products in locations indicated. Heat weld to substrate or adhere walkway products to substrate with compatible adhesive according to roofing system manufacturer's written instructions. 1. Install walkway sections under camera block supports. B. Install rubber blocks to support conduit. Add additional rubber blocks to insure no more than 8’ between blocks. Add additional blocks at corners and where needed for proper support. 1. Set rubber blocks on oversized walkpad sections. 2. Loosely clamp conduit. 3. Existing rubber blocks with steel channels can be re-used if they meet specification requirements. 3.8 FIELD QUALITY CONTROL A. Roofing Inspector: Contractor shall engage a qualified roofing inspector to perform roof tests and inspections and to prepare test reports. City of Diamond Bar City Hall Re-Roof Project 075416 Ketone Ethylene Ester Roofing 075416 - Page 15 of 15 KETONE ETHYLENE ESTER (KEE) ROOFING 1. Engage a qualified roofing inspector for full time inspection to perform roof tests and inspections and to prepare start up, interim, and final reports. Roofing Inspector's quality assurance inspections shall comply with applicable criteria established in NRCA's "Quality Control and Quality-assurance Guidelines for the Application of Membrane Roofing Systems." B. Final Roof Inspection: Arrange for roofing system manufacturer's technical personnel to inspect roofing installation on completion. C. Repair or remove and replace components of membrane roofing system where inspections indicate that they do not comply with specified requirements. D. Additional inspections, at Contractor's expense, will be performed to determine compliance of replaced or additional work with specified requirements. 3.9 PROTECTING AND CLEANING A. Protect membrane roofing system from damage and wear during remainder of construction period. When remaining construction will not affect or endanger roofing, inspect roofing for deterioration and damage, describing its nature and extent in a written report, with copy to Owner. B. Correct deficiencies in or remove membrane roofing system that does not comply with requirements; repair substrates; and repair or reinstall membrane roofing system to a condition free of damage and deterioration at time of Substantial Completion and according to warranty requirements. C. Clean overspray and spillage from adjacent construction using cleaning agents and procedures recommended by manufacturer of affected construction. END OF SECTION 075416 BID BOND BONO NO. 432'l KNOWALL MEN EY THESE PRESENTS, Thar we 4 Seasons Roofing, lnc. The Ohio Casualty lnsurance Company authoriued to l€ns.cl a ge.eralsurety blsiness inthe Stale o{California .s su!V, ar! h.td 6rn 6rnly bourd r! o City of Diamond Bar (hereinaffer called lh€ ObQle) in &e tull 8nd jusl 5uh c'i TEN PERCENT OF THE AMOUNT OF THE BID Do{ers" (S I 0%.*-***'.' ) fo. tr pryfted wtp6o{ h lawfut mdrey d 0rc t rnod Sater. i. li(a o.rsslvas, tr, lBinr. admrris!'aba!, er*rb's. q@aso€ rnd !!dgtu. IrnUy ,r|d aev€.!ly. fnnv by Etcae paalcds. r.rflEREAS,lha rdd PRINCIPA! lras sS.r*tt€d U€ sc.lrrysnyiE bid lo. City Hall Re Roof/Rehabilitation Project NO{,1{ THEREFORE. if Ute .aid codnd be lmely .iEded b lh. Pril.ipal rrd h. Pdrdp.l du!, wil}$ rdl nig 5! .nay b€ ap€cif€d. .r{6r i|b Eb qt d h wrfling, Uldr !,3 oubdol ahsll be rdrl othrrle. b ,srtCn h i, 1oth January 2024 lnc.The Ohio Casualty lnsurance Cqmpanv srtr A-)-\ --1 'J,,,"(^A Les M. Mantle - Attorney ln Faci 4 Seasons Roofing, Anibal Cabral - President 8y: CALIFORNIA ACKT{OWLEDGMENT clvlL coDE g 1189 A notary public or other offirer completing tiis c€rtilicate veriftes only lie tlenttty of the indMdual who ggned the document to r,hicl thjs certilicate is attach€d, and not the truthtulness, dc.uracy, or validity of that documenl State of California County of Orange on l*to->od\berore me, Mary Martignoni - Notary Public personally appeared He.e lnsen No/,e ond nde of the Olficet Les M. Mantle Ndne(s) ot sisnels) who proved to me on the basis of satisfactory evidence to be the pe6onF whose nam€14 islrr. subscribed to the withln lnstrument and acknowle<,ged to me that hehra/tlay executed the same in hidlEfllt€t aulhorized capacity0.(,, and that by hisilrl*rrlr signature$i on the lnstrument the persoM or the entty upon behalf of which the persons acted. executed the instrument. I certiry under PEMLTY OF PERJURY under the laws of the State of Calliornja that the foregoing paGgfaph is true and correct. WTNESS my hand 6nd ofiicialseal. Sagnatur Ploce Noaoty Seol oncyor SAmp ADove {ffit E llNr-rc, NOTaRY PUSL]C C+ron ,o i1 \-_// oRrr{6E couNTr sj:Jjgl_ljgrs sutr ts zozt ll Compleling thls info notion con deter olterotion ol the ctocuflent ot fraudulent reottochment of this form to on unintended documenl Description o, Attached Document Title or Type ot Document -Signe(s) Other Than Named Above: E Corporate Officer - Title(s): tr Partner - Et Limited o General O Partner - E Limited tr General o lndivldrral l! Attomey ln Fact o lndividusl tr Attorney in Fact o Trustee o Guardian or Conseftator D Trusdee E Guardian or Conse ator Capacity(iesl Clalmed by Signer(s) signer's Name: Les M. Mantle Siqner is Representinq: _ Signer is Reflesenting: O2Ola Nalional Notary Association OPTIONAL Docurneni Date: o Corporate Omcer - Title(s): o Other:o Other: Liberty Mutuil. SUREIY This Power oi Atoney limils ihe.cts olihose nrmed heetn,.ndtheyhrve io rdnority to bidd lho Comp.ny.xcepl i.ther.iner.nd io tne ened herci..tat d. Lib€rty Mutual lnsurance Cornpany The Ohio Casualty lnsurance Company l /estAmencan lnsurance Company cenifoteNo 8205001-972012 POWER OF ATTORNEY Xllolvll ALL PERSOI{S BY TIIESE PRESTXIS: lhat TIE Oio C..uoiy IBEI.3 Cqlpanr 6 ! dpditho d, dlaizad uids !E hi! o,lD E h ot Nd tlmpchiE, hatUtsl, ltrtral har$..lo'IFt 'y. . dPrrlioi d, dgailsd udd h. l* of 0F Sbt6 or rirs.dr;.rs. rn yrs.r ittElcan r,srdrco Cc,paiy . " -por"r ali cga"ir*uxl6tEl i orlE sbleofhdra (ha*t cdodild, cred he tqipfii6,), FrG@t b ln bynhdt, hq{$ *rt h, do.s h€.*y i'nq cd;djin6ad irsi]t - d o.tu dv!r_______lgE+9L__!rar6o{ c^ @adJh, sl, &t/rorLdgE,x,.,€litrtr, t, t d m ib bd'dl6 rrotylnd s b !d an iEed, $,rd rt u,xteBihgl bo& E ogitirac6 rd odE 3!i.tot@ifu, n Fea@d t66 F!.srb nd 5lt5t b. a Urdng l4dl he Cdip6ii* !s , h6, ha6 b6i d, 4..d ry h. 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WH $ cd]te4 srdr UIEST OIYWHEREOF.lh@ hrdnto 3.inv h.nd !n.f&6d 0ts 3€sh ot&id Cdlri6 61 10th dayol JalruarY,2024 @@@",,ffik**-- @@@ 9 6b -19=.d|, {----4!.:: jqlbdae m D*5dr, rrps.d Deid lr C{Ey, *lD ..rnebdg.d hihsdl b ba t€ AFbcit Sd€lay o, r-tsiy tr]il, rs!l!@ C4!lpat, no O'io C@*y Cr'p&t, {i W6t &iq@ &Elrc Cdip.ny, rnd tEl lE, .s odr, Ufig Ur6ed e b dq 4eode h. hEgdng turw;t b !E |,!c6,En otned by ritiing d b.l'!r oanE dDr.to.B by hitrsdf s . &t .qtuiz€d ofi6r 0t WmESS W}|EREOf, I hrE haub 3ub6dih€d my .m .{ .&.d m, ndni! 3.d !t Kng o( pBia, parB}ilaia d tE day -d y€s fin .6@ sitb.. ryffi4fuEdaM itstuh{b .hd be a tadng s i, *n d by t. &qas ad ld.ied b by tE S&ridy. &, ,0{6r s autqity r6ted b uy Eqeghtive ( .&tirrirhct urdsploliG d trs $d. ray be Ercked d.ny lhe hy lE 8@d, tD Cnr*mi, tE PiEjd{t o bt !E olt6 d ofids grdrrirg ech pffi d &tEily. lRict-E lll - Et @lion o, C.ntr.d.: S.dim 5. Su.l, Sdds tn Undai.riigs. Arydq ol he Cnpay aJlEnld i. hal FrpGe h silig hy tts .hiM a he p.ai&( En $bj€d b ech trihtiG s h. chaim& a 0E p.e*hnt M, IMtqCal .PPd sdr dsroFh64 .s h.y h. @$rt lo .d n b.hdl ol !E Cd!&, b mdr€, aa,ie, 3a( ad(ei€dq6 .d dds s ilsly ,ty aA r ,tadaO,'g.,tds. l€ .st.,6,'d ds ir.lyoussliN. Srdl !{or.Fi.hcruriea b te trlarre *rfonr h txir,6p€diG poq! d *.n y. dd hd; por!.b&n il; Cmpdy b, [rrrligM[re rd qdih. ot .n, &.tr hstwts rld b .t&.i !E h !E .€d d !16 Ccr$ay. tVH e qa]t d {dr tl,Bb $.f b; s hdB !5 itqF.d bylE p.6ids. rn atE.hd b!t..{!bry. C.dfc.t ol DqlS.dlo - The PBidgt ot tE Ccrr*n ldrg Fedt b h6 Brbrr oa 6. C6pd!t, &iui!6 O6vn I. C{.r, &abt Sd!k, b {gilt&d &rqsn_hd.rmayboncldyb.dcllddloltECdp{,btrE*ede.ltal.4.*n*tedgcrnddE6,&ttdydd![unilddi$,bods,retnt,*.,aO-iray lutro&.tloi - 8v u'lrliru dst oI !E cclpey. E6n or o.!c&G, tE ccrp&y osa tiar bcaio d o!d,'i{, '!,r!d/€d rrElE ot -y citnt e*, of !t ldldlrltl€l'q lplrtrro upg' . c.t'i.d cq, or w FG. d .tdr€, isr6d t, !F Ccrrny h di.did 'ith ,rdy h;.e, llut b. v& {d l)ird1o '{o! !E cor;y rib !F !tr. hE rn decl a aEjgh oardy .fird. !, Rq- 9l.9{n I "Fa!, ar*Et s&r.,r, I$ qrio csaly tBltaE c..Dar, t_6{t, larb]ar her.nc. cqip6iy, rd rlEl a!$can lEra€ cqipdrr .rohr€!, crdf tul tB cigiEl p*d ol dq!€, ofuhich !l€ lr!$i!! b r tI, tu r,rd dtld @py of tie p*€. d,rlbE, qaJh; t, dd CdnCd*s, l, i, nr tq!. ",a ciira'r,a llsly MJIJI hsu6n€ CaFry 'Ih€ Oio C&dt kEu6@ Cdnpay W6l Ami:d heic. Ccnpat E